Table attachment for an operating table



April 10, 1956 c. F. MARES 2,741,520

TABLE ATTACHMENT FOR AN OPERATING TABLE Filed March 15, 1954 C/zar les iii/fares INVENTOR I BY I, I I J ATTORNEYS.

United StatesPaterit TABLE ATTACHNIENT FOR AN OPERATING TABLE Charles F. Mares, Kerrville, T ex.

Application March 15, 1954, Serial No. 416,288

1 Claim. (Cl. 311-10) This invention relates to an attachment for an operating table.

It is a principal object of this invention to provide such an attachment for an operating table of the kind to be more particularly described hereinafter having a patient supporting tray slidable on a fixed table or stand for moving the patient longitudinally of the table as required by a physician during an operation.

It is another object of this invention to provide an operating table attachment of this kind, having a tray slidable on a supporting table having a geared rack fixed on the tray and a rotatably mounted toothed gear on the table engaging the rack for moving the tray longitudinally of the table.

It is a further object of this invention to provide such an attachment for an operating table of this kind for easily moving a patient longitudinally of the operating table without handling or tugging on the patient by the orderlies or nurses assisting the doctor and anaesthetist in the operation.

Other and further objects and advantages of the invention will be hereinafter described and the novel features thereof defined in the appended claim.

In the drawings:

Fig. l is a side elevation, partly broken away, of an operating table constructed according to an embodiment of my invention.

Fig. 2 is an end elevation.

Fig. 3 is a bottom plan view of the slidable tray removed from the table.

Fig. 4 is a longitudinal section, partly broken away, of the invention.

Fig. 5 is a transverse section of the invention.

Referring to the drawings the numeral designates generally an operating table for supporting a patient in an operating room.

For many years it has been the custom of nurses and operating room orderlies to tug and pull on patients by their legs in order to pull them downwards of the operating table and then backwards for the operation as is required for positioning the patient to be properly handled by the doctor.

As has been noted in the objects of the invention it is obvious that the handling of the patient for the doctor may be more easily accomplished by an embodiment of my invention as herein defined.

The operating table 10 includes a fixed or stationary table 11 having a longitudinally extending table top 12 on which the patient, to be operated upon, may be properly supported and moved about as desired.

A patient supporting tray 13 is rotatably supported on the stationary table top 12 for movement longitudinally of the table 11.

The tray 13 is rectangular in configuration having a roller 14 depending from each of the corners of the tray.

A longitudinally extending toothed rack 15 is fixed to the lower side of the tray 13 intermediate the width of the tray.

A transversely extending shaft 16 is rotatably supported on the stationary table 11, above the table top 12, as clearly shown in the drawings.-

A circular gear 17 is fixed to the shaft 16, intermediate the length of the shaft, and the teeth of the gear 17 meshingly engage with the teeth of the rack 15 to move the tray 13 longitudinally of the table 11.

Each end of the shaft 16 is rotatable in a bearing 18 on the opposite sides of the table 11 and one end of the shaft 18 extends completely through one of the bearings 18 with a lever 19 secured on the outwardly extending portion of the shaft 16. A handle 20 is secured to the lever 19 at the end opposite from the connection of the lever to the shaft.

An upwardly extending post 21 is positioned on the opposite sides of the table 11 for supporting the bearings 18 and shaft above the table.

The post 21, on each side of the table is provided with a laterally extending clamping jaw 22 intermediate the length of the post 21 and the clamping jaw extends toward the opposite side of the table.

At the lower end of the post 21 there is provided a laterally extending arm 23 which is positioned below the table top 12 with a screw 24 threadably engaging through the arm 23 directly below the table top 12. A clamping jaw 26 is rotatably supported on the upper end of the screw 24 for engaging the lower side of the table top and the screw 24 is rotated in threaded engagement with the arm 23 by the outwardly extending finger engageable wings 26 formed on the end of the screw 24 remote from the clamping jaw 25.

In the use and operation of the operating table described above, the posts 21 hearing the shaft 16 are clampingly secured to the table top with the tray 13 movably supported on the upper surface of the table top 12 and the gear 17 engaged with the rack 15 whereupon by rotative movement of the shaft 16 the tray 13 will be caused to move in a selected direction relative to the table.

While the specific details of one embodiment of this invention have been herein shown and described, the invention is not confined thereto as changes and alterations may be made without departing from the spirit and scope thereof as defined in the appended claim.

I claim:

An operating table attachment of the kind described comprising a supporting table having a stationary elongated flat table top, a rectangular tray on the upper surface of said table top for movement longitudinally thereof, rollers depending from said tray on the opposite sides thereof, a longitudinally extending toothed gear rack on the under side of said tray, a shaft rotatable on said table transversely thereof, a toothed gear on said shaft engaging transversely of said shaft intermediate the length thereof, bearings rotatably engaging said shaft outwardly of said gear, a vertically extending post on the opposite sides of said table top and extending upwardly therefrom, a bearing on the upper end of each of said bearing posts rotatably engaging said shaft adjacent the ends thereof outwardly from said gear, a laterally extending clamping jaw on each of said posts intermediate the length thereof and extending over the edge of said table top for clampingly engaging the upper side of said table top, a laterally extending arm on the lower end of each of said posts, a vertically extending screw threadable through each of said arms and a clamping jaw on the upper end of each of said screws for clamping engagement on the under side of said table top, oppositely extending wings on the other ends of said screws, and a crank on one end of said shaft for rotating said shaft Patented Apr. 10, 1956 fifi "effecting flifig firiweiheiit bf said tray longitudinally of saidtable top.

References Cited in the file of this patent 

